Pancytopenia due to vitamin B12 deficiency associated with Graves' disease
Burns, R.W.; Burns, T.W.
Missouri Medicine 93(7): 368-372
1996
ISSN/ISBN: 0026-6620 PMID: 8772327 Document Number: 464909
Pancytopenia has a broad differential diagnosis, which can be narrowed depending on the cellularity of the bone marrow. The authors describe a complex patient with a history of Graves' disease who presented with pancytopenia, initially suspected of being due to aplastic anemia. He was later diagnosed with Vitamin B12 deficiency as a result of pernicious anemia. The potentially striking hematologic effects of cobalamin deficiency and the autoimmune basis for concurrent Graves' disease and pernicious anemia are reviewed.